130712209 has 2 divisors, whose sum is σ = 130712210. Its totient is φ = 130712208.

The previous prime is 130712171. The next prime is 130712221. The reversal of 130712209 is 902217031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70308225 + 60403984 = 8385^2 + 7772^2 .

It is an emirp because it is prime and its reverse (902217031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130712209 - 2¹⁷ = 130581137 is a prime.

It is not a weakly prime, because it can be changed into another prime (130712249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65356104 + 65356105.

It is an arithmetic number, because the mean of its divisors is an integer number (65356105).

Almost surely, 2^130712209 is an apocalyptic number.

It is an amenable number.

130712209 is a deficient number, since it is larger than the sum of its proper divisors (1).

130712209 is an equidigital number, since it uses as much as digits as its factorization.

130712209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 130712209 is about 11432.9440215546. The cubic root of 130712209 is about 507.5031217908.

The spelling of 130712209 in words is "one hundred thirty million, seven hundred twelve thousand, two hundred nine".